Sole-cutting machine



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S m. d o M 0 m Pattented Dec. 23

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A.. M. STICKNEY. soLE GUTTING MACHINE.

(No Model.)

Pagented Deo. 23, 1890.

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A. M. STIGKNEY. SOLE GUTTING MACHINE.

Patented Dec. 28,1890.

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UNITED STATES ATJLISON M. STICKNEY, OF MEDFORD,

CUTTING MACHINE COMPANY,

PATENT Frios.,N

SOLE-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 443,123, dated December23, 1890).

Application filed November 18, 1889. Serial No. 330,776. (No model.)

To all whom it may concern:

Be it known that 1, ALLIsoN Mortais STICK- NEY, of Medford, in thecounty of Middlesex and State of Massachusetts, have invented animproved Machine for Cutting Soles and other Forms, of which thefollowing is a specfication, reference being had to the accompanyingdrawings, in Which- Figure 1 is a side elevation, and Fig` 2 a frontelevation, of one of my improved machines. Fig. 3 is aplan, and Fig. 4an elevation, of the knife-block carrier. Fig. 5 is an elevation of therack, the forms, the knifeblock, and a portion of its carrier. Fig. 6 isa section on line 6 6 of Fig. 5. Fig. 7is asec- Fig. 8 is a plan of theupper part of the knife-block detached, and Fig. 9 one of the rolle'rs.Fig. 10 is a plan, partly in section, of the rack; and Fig. 11, a bottomplan of the rack With the upper part of the knifeblock, also shown inbottom plan; Fig. 12, a section on line 12 12 of Fig. 11.

My machine is an improvement on that patented to XVillard F. lVellman byPatent No. 391,287, dated October 16, 1888, and is like that machine,except as hereinafter described. Its main purpose is the cutting ofsoles with beveled edges; but, as Will be clear, it is adapted forcutting vamps and a large variety of other forms either with beveled orsquare edges.

My machine consists of a knife-block in two parts, Which is traveledabout a form which corresponds generally in outline to the Outline ofthe form to be out, one part of the knife-block being guided by thatform, While the other part, Which carries the knife, is guided by asecond form which corresponds in Outline with the form to be cut. Thiscoinbination of a knife-block in two parts With tWo guides, one guidin gone part of the knifeblock in a closed or endless path and the otherpart in a special path, is not broadly new with me; but nevertheless themain feature of my invention is the combination of a knife-block in twoparts With two forms and with m eans for traveling the knife-block aboutthese forms, for in all prior machines for doing this Work by means of ageneral guide for one part of the knife-block and a special guide orform for that part of the knife-block to which the knife was seoured thegeneral guide served simply to give the knife-block a motion in a closedpath, and its curves did not correspond with the curves of the articleto be cut-that is to say, the general guide) did not have inward curvesand outward curves corresponding to the inward and outward curves of thearticle to be cut, and was not in substance a form, but merely a general6o guide. The practical difference between my' combination and the priorone is that by mine the knife-block as a whole is not onlyguided in aclosed path, but the line 12 12 in Fig. 11 (which is kept alwayssubstantially at right angles with the edge of the form, no matter atWhat part of the form the knife-block may be) is always a radius of thecurve at any part of the form, and in order that the bevel` cut by theknife on the edge of the article 7o may be uniform throughout it isessential that Vboth parts of the knife-block shall be controlled byforms which are alike so far as corresponding With both inward andoutward curves of the article to be cut. 7 5

So far as I know I am the first to obtain the, uniformity and degree ofbevel required by any means; and the chief feature of my invention isthe solution of this problem.

I have found it not only necessary to use 8o two forms, each of Whichcorresponds with both the inward and the outward curves of the articleto be cut, as above described, but also to separate those forms, asshown in Fig. 5,in order that the size of the article may be smallerthan the form by Which the main part of the knife-block is guided, forit is of very great practical importance that this form be made of anintermediate size in order that one of these forms shall serve for allthe sizes go to be cut. This separation of the two forms is alsoessential in order that the required de gree of bevel may be obtained,as willbe clear from Fig. 5, in which the knife is shown in full linescutting one size and in dottedl lines cutting a larger and a smallersize, all With the same bevel, for the upper form is so far above thelower that the knife may be arranged with any desired bevel.

The knife-block carrier is substantially the mo same as in the lVellmanpatent, the only difference being that I prefer gears rather than beltsand pulleys, as the gears are positive, while the belts are likely toslip and are otherwise inferior in my opinion. In the preferredconstruction the knife-bloek carrier is supported by shaft 1 and is madeup of an arm 2, hubs 3 of which are on shaft 1 and supported by acollarfiz thereon. Arm 2hashubs 5, through which shaft 6 passes, and onthis shaft an arm 7, having hubs 8 to receive shaft 0, is mounted. Arm 7has hubs 9 to receive a shaft 10, which carries the knife-block. Onshaft 1 a gear 11 is mounted, and this gear meshes with a gear 12,mounted on arm 2 intermediate gear l 1 and gear 13 on shaft 6, whichalso carries a gear 11, which meshes with a gear 15, mounted on arm 7intermediate gear li and gear 17 on the shaft 10, carrying theknife-block. Motion is given shaft 1 by any suit-able means, as by belt16 and pulley 17, as will be plain to all skilled in the art.

The table is the same as that of the \Vellman patent, except that it islifted by four eams instead of two. The parts net lettered are eitherthe same or differ merely in details of construction from thecorresponding parts of the WVelIman machine. The form A, for controllingthe main part Z) of the knife-block B, is shown as a rib projecting fromthe rack-plate, by which that knife-block earrier is caused to travelthe knife-block B about the forms A and A' much as iu the lVellmanmachine. The form A' is a patternplate, preferably of sheet metal, andis not only of the shape of the article to be cut,but of nearly the samesize. The knife-block B consists of two parts b b', (the part Z) beingsupported by the outer shaft of the knife-block carrier, as in thelVellman machine,) the part b' being movable with relation to part Z),so that the knife may follow the form A', and the part b', as shown, isaslide supported by ways which are fast to part b, the part b' beingthrown forward in its ways by the chain and pulley 112 63, the sleeve onpulley D3 being attached to one end of a spiral spring` U1, (see Fig.7,) whose other end is fast to its box bs, which is held from revolving.

The operation is as follows: The material to be cutis placed upon thetable and clampcd between the table and the form A' by depressing thecam-treadle, as in the lVellman Machine. The machine is then started,the rotation of the gears of the knife-block carrier causing the pinion,(see Figs. l and 5,) which is engaged with the rack just labove form A,to compel the knife-block to travel about the forms A and A'. The form Aguides and controls the part Z) of the knifeblock B, for the roller 1 ofpart Z) (see Figs. 8, 11, and 12) is on one side of the rib whichconstitutes form A, while the rollers 2 and 3 are on the other side, sothat not only is the path of part b controlled by form A, but also therelation of part Z) to form A, the central line of part Z) being alwayskept at substantially a right angle to that part of form between therollers 2 and The part b' of knife-block B is controlled by the form A'as well as (indirectly through part b) by form A, and thereby compelledto cut an article which corresponds almost exactly with form A'; but theedge of the article can be given any desired bevel by setting the knifeon a slant, and this bevel will be made uniform by the joint action ofthe forms A and A' 011 the parts b and b' of the knife-bloek B. The formA, beingintermediate, will sufiice for any size of sole of that style;but the form A' is changed for each size by detaching it from the post 1and attaching another of the desired size. Slight variations of stylemay also be cut without changing form A; but in practice it is better tochange form A for any change of style. As shown in the drawings, theform A is in one piece with the rack, and consequently the rack mustalso be changed whenever form A is changed. This is on the wholeIdesirable, as making form A separate from the rack will requireundesirable changes in the machine.

lVhat I claim as my invention is- 1. .In a machine for cutting soles andthe like, the two forms A and A', each corresponding in Outline to theoutline of the article to be cut7 the kuife-carrier B, composed of twoparts l) and b', one controlled by the form A and the other by the formA', and mechann ism, substantially such as is described, for travelingthe knife-block about the forms, all combined and operatingsubstantially as described.

2. Ina machine foi` cuttiug soles and the like, the combination of formA, posts 1 and (5, form A', and knife-bloek B, composed of two part Z)b', the part b' carrying the knife and extending under form A and overform A', and intermediate con nections between the posts and theknife-block, substantially as and for the purpose set forth.

ALLISON M. STICKNEY.

Vfitnesses:

J. E. MAYNADIER, JOHN R. Snow.

IOO

